Lock.



PATBNTBD PEB. 12, 1907.

W. 1:". CLAY.

WILLIAM F. CLAY, OF CAMDEN, NEW JERSEY.

LOCK.

Specication of Letters Patent.

Patented Feb. 12,1907.

Application iiled August 10, 1906. Serial No. 330.048.

To @ZZ when@ it 71am/ concern:

Be it known that I, WILLIAM F. CLAY, a citizen of the United States,residing at Cam- New Jersey, have invented new and useful Improvements1n Locks, of which the followlng is a specification.

My invention pertains to permutationlocks, and it contemplates theprovision of a permutation-lock constructed with a view of beingoperated from either side of a door and one in which the combination canbe changed by simply taking out one or more of the disks and replacingsame in different positions and in which the dials can be moved backafter the bolt is retracted, so as to prevent unauthorized personsascertaining the combination.

Other advantageous features of the lock will be fully understood fromthe following description and claims when the same are read inconnection with the accompanying drawings, Jforming part of thisspeciiication, in which- Figure l is a front elevation of my novel lockwith the dials adjusted so as to arrange the notched disks in positionto permit of the slidable bolt being retracted, the combination in thisparticular case being 3197. Fig. 2 is an elevation of the lock with theback plate removed and showing the disks in position to permit ofretraction of the slidable bolt. Fig. 3 is detail view of the back plateof the casing. Fig. 4 is an enlarged detail transverse section takenthrough the lock and showing one of the spindles and the partsappurtenant thereto. Fig. 5 comprises disconnected views of one of thespindles and the dial which is designed to be fixed thereon.

Similar letters designate corresponding parts in all of the views of thedrawings, reierrin g to whichd A is the casing-body of my novel lock.The said. casing-body is provided on its front wall t withinteriorly-threaded posts c, and it is also provided on the inner sidesof its end walls with bifurcated projections d and in one of said wallswith an aperture c for a purpose which will presently appear.

B is the back plate of the casing, which is connected through the mediumof screws, passed through openings a in the plate, to

the posts c, and is provided with four (more or less) circular openingsC is the slidable bolt of the lock. This den, in the county of Camdenand State of slidable bolt is provided with a reduced end g to passthrough the aperture c, and is also provided with a large opening h andfour (more or less) rearwardly-directed projections 7c.

D is a shaft journaled in and extending through the front wall Z) of thebody-casing A and the back plate B and having a head m disposed in theaperture 7L of bolt C, and also having knobs or iinger-pieces at itsends. By virtue of this provision it will be seen that when the bolt Cis free to be moved in the direction of its length it may beconveniently moved by rocking the shaft D in one direction or the otherto move the bolt inward or outward, as occasion demands.

E E are spindles extending transversely tlnough the casing and havingdials F at one en G Cr are disks mounted on tubular projections I-I,extending inward from the front wall b of the casing-body A'and looselysurrounding the spindles.

I I are rotary tumblers carried by the spindles, and J J are dialsdesigned to be detachably connected to the ends of the spindles remotefrom the ends bearing the dials F.

The spindles E, dials F, disks G, rotary tumblers I, and dials J areidentical in construction, and therefore a detailed description of theparts shown in Fig. 4 and Fig. 5 will suiiice to impart a definiteunderstanding of all. Referring, therefore, to Figs. i and 5, it may besaid that the dial F is formed integral with the spindle E, and inaddition to the said dial F the spindle is provided with a portion p ofcircular form in cross-section, journaled in one tubular projection H onthe casing-wall and is also provided with a portion r of angular form incross-section. The disk Gr is loosely mounted on the tubular projectionH mentioned, and is provided in its periphery with a notch s and in itsinner side with a circular groove t, across which at one point extends award or bar u for a purpose which will be presently set forth. Therotary tumbler I is arranged in one of the apertures f of the back plateB and ilush with the outer side of the said back plate, and it isprovided with an angular aperture c, receiving the angular portion r ofspindle E, and is also provided with a stud w, which is movable in thegroove t of the disk G and is designed to bring up against the ward uand move the disk G through the medium of said ward. The dial J islarger than the aperture f, so as to bear against the outer side of theback plate B, around the said aperture f, and is detachably connected tothe spindle E through the medium of a pin or other suitable means.

By virtue of all of the tumblers I being arranged in the apertures f ofthe back plate B and all of the dials J being detachably connected tothe spindles E it will be apparent that when it is expedient to changethe combination of the lock the same may be eXpeditiously accomplishedby removing one or more of the dials J and one or more of the tumblers Iand replacing the said tumblers in different positions on the spindlesand then replacing the dials J and connecting the same to the ends ofthe spindles.

M M are springs seated at their ends in the bifurcated lugs d of thecasing-body A and looped around the posts c and bearing at pointsintermediate the posts c and the lugs d against the perimeters of thedisks G. These springs M have for their office to hold the disks Gagainst too free or casual movement, so that it will be apparent thatthe said disks G will only be moved when the studs w of the tumblers Iare pressed incident to rotation of the tumblers against the wards u ofthe said disks G.

The disks F and J are similarly gured, and index-points are provided onthe face of the front plate l), as shown in Fig. 1, and also on theouter side of the back plate, so that the combination may be worked fromeither side of a door.

After the combination is properly worked and the disks G are positionedas shown in Fig. 2 relative to the bolt C it will be apparent that thebolt may be conveniently retracted by rocking the shaft D on its axis,the notches s of all of the disks G being then in a position to receivethe projections 7c of the bolt. It will also be seen that through themedium of the shaft D the bolt C may be thrown forward with the samefacility.

When the parts are in the relative positions shown in Fig. 2, it will beseen that the dials can be moved back so as to carry the studs w of thetumblers I away from the wards u of the disks G, this in order toprevent unauthorized persons from ascertaining the combination of thelock when the bolt C is retracted.

The before-described facility with which the combination of the lock maybe changed will be appreciated as an important advantage when it isremembered that when the lock is used on coin-controlled and otherapparatus it is frequently necessary to change the employees authorizedto open the door or drawer to which the lock is applied.

The construction shown and described constitutes the present andpreferred embodiment of my invention but I desire it understood that inpractice such changes in the form, construction, and relativearrangement of the parts may be made as fairly fall within the scope ofmy invention as claimed.

Having described my invention, what I claim, and desire4 to secure byLetters Patent, is-

1. The combination in a permutation-lock, of a casing having a largecircular opening in one of its walls, a slidable bolt arranged in thecasing and having a rearwardly-directed projection, a spring secured inthe casing, a

spindle ournaled in the casing and having a portion of angular form incross-section eX- tending through the said large circular opening, adial detachably secured on the spindle at the outer side of and adjacentto the wall in which the large circular opening is formed, a rotatabledisk mounted in the casing with its periphery in frictional contact withthe spring and having a notch in its periphery to receive the projectionon the bolt and also having a ward, and a circular tumbler having anangular aperture receiving the angular portion of the spindle, wherebyit is caused to turn with the spindle and yet is removable therefrom,and also having a stud movable in the disk and arranged to bring upagainst the ward thereof; said tumbler being arranged and adapted toturn in the large circular opening in the wall of the casing with itsouter side flush with the outer side of said wall and opposed to theinner side of the removable dial.

2. In a permutation-lock, the combination with a casing havingbifurcated lugs on its end walls and` also having large circularopeningsin one of its side walls, a transverse shaft journaled in the side wallsof the casing and having a head, a slidable bolt arranged in the casingand having rearwardly-directed projections at its opposite sides andalso having an opening receiving the head on the transverse shaft, andsprings secured at their ends in the bifurcated lugs of the casing andextending longitudinally of the casing between the lugs at the endsthereof; of spindles extending transversely through the casing andhaving dials at its ends, the dialsiadjacent to the large openings inthe wall of the casing being detachable, rotary disks mounted in thecasing concentric with the spindles and with their peripheries infrictional contact with the springs at intermediate points in the lengththereof and having notches in IOO their peripheries and also havingWards, and In testimony whereof I have hereunto set rotary tumblersremovably arranged on the my hand in presence of two subscribing Wit- [ospindles so as to turn therewith and with nesses.

their outer sides flush With the outer side of WILLA F CL AY the Wallhaving the large circular openings in L which openings they are disposedand being Witnesses:

provided With studs movable in the disks WILLIAM I. SKINNER,

and adapted to bring up against the Wards. HARRY W. MORTON.

